D: 720 J
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A 6V supply is connected in series with an ammeter and a 4Ω resistor. What is the reading on the ammeter?
Sets of voltage-current readings are obtained for different electrical components. Which set of readings is for a 10Ω…
A student tests the circuit of a press-button telephone with a lamp and a battery. Which single switch can be pressed…
Which pair of quantities includes one scalar and one vector?
The speed-time graph represents the journey of a car. The dots separate different sections of the journey. There are …
A steel ball is released just below the surface of thick oil in a cylinder. During the first few centimetres of trave…